Years ago I had service entrance wire gauges. They worked like a screw or nail gauge. They were white plastic cards with notches showing the sizes of service wires and listed their max amps. I have given the few I had away and was looking for replacements. Does anyone know where to find these?
I have a piece of plexiglass with notches cut into it. Was given it in training class. Should be easy to replicate. Only couple inches wide by 6 inches long, fits nicely in tool belt. I should make a template of the notches for future use (after I lose this one).
When I was an electrical contractor, most of the supply houses I bought from gave them away free. It might be worth stopping at an electrical supply house. Even if they aren’t free, they probably have them.
This is the only one I’ve been able to find. With the shipping it’s about $27. A little pricey for a piece of plastic. I checked a couple local supply houses, they were having trouble grasping the concept. I’ll keep looking. I also did an exhaustive Google search. Nada.
How accurate are these tools? If you had compact conductors (like most aluminum conductors) they will they be smaller than the same size standard conductors, can these tools actually differentiate between compact and normal conductors or would you still need to look at the labeling on the conductor itself which would tell you the size?